Minor edit in vignette; check running properly

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/eventstudies@229 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Removed usage of doMC, isn't needed.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/eventstudies@230 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Removed unneeded dependencies.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/eventstudies@231 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Rearranged authors alphabetically.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/eventstudies@232 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Changed description of the package.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/eventstudies@233 edb9625f-4e0d-4859-8d74-9fd3b1da38cb